Among the given options, only the coccygeus does not compress theabdomenas it is a muscle of the pelvic floor, not of the abdomen. The other three muscles belong to the abdominal region and contribute to its compression.The muscle that does not compress the abdomen is thecoccygeus. The coccygeus is a muscle of the pelvic floor, not of the abdomen. It is part of thelevatorani group of muscles, which support pelvic organs. On the other hand, the internal oblique, external oblique and thetransversus abdominisare all the muscles of the abdominal region, which work to compress the abdomen during various movements and exercises.Thus, in conclusion, the coccygeus does not contribute to the compression of the abdomen as it is part of the pelvic floor and not the abdominal wall.To know more abouttransversus abdominisvisit:brainly.com/question/33378007#SPJ11...

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